Science highlights from Andrew Kruegel, Central Nervous System Research; Columbia University ~
Kratom shows weak respiratory activity with no excitement in cats or mice. Studies were done both in vivo and in vitro, meaning in test tube and in a living organism (in vivo). Blog Written By Kami Ann Davis
https://pubs.acs.org/doi/10.1021/jacs.6b00360
Southeast Beautiful Kratom Education 